On Monday, May 10, 2021 at 12:51:03 PM UTC+1, Andrew wrote:
handrails need to be supported about every metre. How long is this
length of handrail, and apart from the very end, where else and
to what will the rest be attached to ?.

It's just under a metre and will attach to another rail at right angles to it, so it'll be supported at one end by this rail and at the other at the brick wall by one of the suggestions from above